18 Allendale Road, Plymouth, PL4 6JA
About 18 Allendale Road
18 Allendale Road is a one-bedroom mid-terrace house in Plymouth (PL4 6JA). It has a recorded floor area of 47 m² (around 506 sq ft), construction records dating it to 1900-1929 and council tax band A. At 47 m² this is the 4th smallest of 18 units on EPC record in the building, where floor areas span 25–220 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (May 2025) shows a C (score 71). When first surveyed in February 2010 the rating was F, the property has climbed 3 bands since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Average to Good and hot-water efficiency went from Very Poor to Good.
It hasn't traded since February 1998, a hold of 28 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £138,000 sits 245% above the 1998 sale of £40,000. On a £-per-square-foot basis, the last sale (£79/sq ft) was about 27.7% below the postcode norm. At 47 m² it sits well below the postcode median (88 m² across 17 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 76% of similar EPCs).
What this property has
Inside
- Bedrooms1
- Bathrooms2
- Dining roomYes
Outside
- Private gardenYes
Building
- Central heatingYes
- RefurbishedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Upgraded to gas central heating
Connected to mains gas supply
Heating controls upgraded for better temperature management
Hot water system upgraded
Heating system changed
Changed to a more efficient fuel source
Heating controls changed
Hot water system changed
Replaced storage heaters with gas boiler
Connected to mains gas supply
Heating controls upgraded for better temperature management
Hot water system upgraded
Window efficiency improved
Wall insulation improved
Roof insulation improved
Window efficiency improved
Wall insulation improved
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
18 Allendale Road has no planning applications on record.
But the area is active
72 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
18 Allendale Road's estimated value is more than triple its earliest registered sale price (1998).
£138,000
Modelled from EPC, postcode comparables.
£40,000
Recorded with HM Land Registry.
Sales timeline
27 February 1998Most recent
£40,000
Median price across the last 5 sales in PL4 6JA: £228,000 (2024–2019).
Nearby sales in PL4 6JA
Versus other Allendale Road homes
On co₂ emissions, 18 Allendale Road stands well clear of the street.
Price per m²
£851
Street avg £1,835
Floor Area
47 m²
Street avg 51 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
1.7 t/year
Street avg 2.5 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Plymouth Girls High 1 — bus stop.
Closest school
0.1 km
Plymouth High School for Girls. 42 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
53.4dB

Night-time· 23:00 – 07:00
41.9dB







